Prevent Thunar "Open with" to permanently change the default programme

Lorenzo Sutton lorenzofsutton at
Fri Jul 10 15:48:04 CEST 2020

On 10/07/20 14:37, Harald Judt wrote:
> Am 10.07.20 um 11:39 schrieb Renaud (Ron) OLGIATI:
>> On Fri, 10 Jul 2020 10:05:59 +0200
>> Lorenzo Sutton <lorenzofsutton at> wrote:
>>> Since a few versions I see this behaviour in Thunar: if I open a file
>>> with the Open with menu and select a programme which is different from
>>> the default one, that 'new' programme becomes the default one. For
>>> instance I have most audio files opening by default (i.e. double click)
>>> with smplayer, if I once I open them via "Open with", say, in sound
>>> converter, then (Thunar?) sets sound converter as default.
>>> Any idea on how I can prevent this?
>> One of the reasons I dropped Thunar, and use PCManFM...
>> Cheers,
>> Ron.
> In fact, thunar does *not* set a default application for open with without
> user consent. You would have to check the box in the applications list dialog
> before clicking on ok to do so. Probably that is what is missing here.

I see what you mean, and was missing this because mostly using the menu 
which already proposes other applications (and therefore has no way to 
select a default application).

> As long as no default application is set, it will simply use the last
> application that you have used to open the file when double-clicking on it (I
> think that could also have been used by any other GTK application). So to fix
> this, make the application you want to use the default by clicking the
> "default" checkbox in "Open with other application..."

There seems to be a caveat though: I cant seem to be able to eventually 
change that to something else. i.e. if I select the "default" checkbox 
for an application, then I do open with other application, select a 
different one and also select the "default" checkbox, the former 
application is kept as default?

On the other hand if I edit by hand $HOME/.config/mimeapps.list and 
change the first instance of that mime type (i.e. its .desktop entry), 
that seems to work.


> Regards,
> Harald
> --
> `Experience is the best teacher.'
> PGP Key ID: 4FFFAB21B8580ABD
> Fingerprint: E073 6DD8 FF40 9CF2 0665 11D4 4FFF AB21 B858 0ABD
> _______________________________________________
> Xfce mailing list
> Xfce at

More information about the Xfce mailing list